Authorities are urging Cairns residents to drink plenty of water to avoid dehydration as the city swelters through a heatwave.
Yesterday was Cairns' hottest day in more than 27 years.
Forecaster Andrew Mostyn says the city reached 38.6 degrees about 3:30pm (AEST).
"Very, very warm conditions there so that's roughly eight degrees above average," he said.
"Thirty-one degrees [is] the average in Cairns at this time of year but not quite near the record books - the record is 40.4 degrees.
"That was set in 1967, so not looking like we're going to break the record but remaining warm for the next couple of days."
Above-average temperatures are forecast to continue until the weekend.
© ABC 2013
18:43 EDT Severe thunderstorms and damaging winds have caused chaos across Sydney, with the SES looking at more than 250 jobs, mainly roof damage from heavy rain and strong winds.